Krell 700cx, and Tara cobalt A/C power cord.

Audiolabyrinth, as you stated, my original preference was installing an IEC socket on the back of the 300CX, but the (metal) work involved in just cutting out the opening was beyond the tools I had on hand (the rear panel is about ¼ in thick)! The other alternative I considered is getting a back panel off an old FPB300, which has an IEC socket, but there are some panel layout differences, as my 300CX has cast inputs, etc. It was much easier to just wire in a male IEC socket to the end of the captive cord – just to see if there was a material and beneficial difference to the sound.

What I can’t explain (and will not attempt to) is my experience of the improvements brought by using a (suitable – i.e. Shunyata Anaconda CX in my case) aftermarket cord “in-between” the wall and the 300CX’s captive cord (regardless of knowledge to the contrary). In my system and room, the improvements were not subtle and outweighed any drawbacks of the additional length of running the 9ft (?) captive cord plugged into a 6ft. aftermarket cord. Hence my interest to see if anyone else with a captive corded FPB would find similar results by replicating what I did.

I should probably also mention that the wall socket I plug the 300CX (and my other audio equipment) into are PS Audio Power Point Premiers with an Oyaide WPC-Z Carbon Fiber faceplate and aluminium frame, connected directly to an isolated circuit breaker with high current, shielded in-wall wiring between the power socket and the fuse box. I’ve also got three-phase power in my house, with one phase purely dedicated to my music room. You would not think that these things make a difference (and perhaps not everyone may hear an improvement), but my experience is that they are cumulative and have (specifically) taken the sound of my Krell FPB300CX to another level! (I do have another standard wall socket next to the Power Point Premiers, connected to the same point in the fuse box, where I can easily plug in and hear the changes). Hope this gives you a bit more insight into my audio journey with the Krell FPB - Happy Listening!

Audiolabyrinth -

look into Transparent PC.

Agreed. I'm still adding Transparent PC's to the rest of my system with good effect. I now have Transparent between the wall and amp, between the wall and my power conditioner (which powers my source components), and between the power conditioner and my pre. Although a lower level cord is currently on the pre, I want to get a higher level cord for the pre and also add one to my phono amp.

@ Pantera6, Hi, Your last post was a great write!, I believe I said Krell did not recommend putting an IEC socket on my amp,But they did not say they could not do it, and they did not say that would not do it if I asked them to, why don'nt you get Krell or sombody else put a IEC socket on the amp, I know Krell can do it to cosmetically great effect!, I am finally sold that a super high quality power cord can improve the sound of my amp, I did buy a 1-year old Taralabs cobalt power cord with oyaide plugs last june the 28th, it is 3ft long, this power cord in a 6ft version is retail $5,450.00,, this would do the trick for sure if I can get enough balls to try it on my amp, the power cord is 20amp with 20 plugs, MRvordo did it with his fpb 600 he has now with no issues, I do have a dedicated circuit and electrical cord just for the amp now, what you did with your power, I did in 1997, yes!, It improves Krell amps substanially, The difference I did however, was to run a very short ground to earth, with a real copper ground rod, less than 6ft was how long the ground was, talking about a very huge improvement!, I'm still working on that here thou, warning, when you use a dedicated ground like this, BTW, Krell factory does the same thing, It will not flip your breaker if you incure an issue!, thats the drawback!, If you are like me, I unplug the whole system when I am not useing it eanyway!, there is no worrys this way, LOL!, Pantera6, My amp is still at Krell now, we have 6 weeks and she will be home, Krell has been done with the amp, They were kind enough for us to make payments on the amp being totally renewed inside and out, at cost no object!, I wanted to have the countrys very few, if eany?, Brand new FPB 700CX amp!, Krell guranteed this to be brand new in every way, Krell said, with what they have available now to go in the amp, Its likly It will sound alot better after the break in of 600 hours than it ever did in the amps life time, mmm, needless to say, I was Thrilled to be told that!,BTW, I love your user name, It reminds me of one of my all time favorite metal bands, Pantera!, The thing is, I could get Krell to do the IEC socket there at their factory, I do not believe we can afford it, I know that sounds awfull funny!, But we are paying them $3,157.38 now!, I will have a little over $11,000.00 in this amp!, I know I will never get my money back out of it, we plan to use it one way or another on one of our systems untill it dies!, currently, its on the main system for the next few years, untill I can get my hands on a Dan D Agistino amp!, this Krell 700cx was made in 2005, It was not even needing an overhaul yet, thats ok, we will have a new one, I am sorry fellas, I am very proud of that! cheers.

What is the model Transparent power cables all of you have?